5712/1A – NAUTILUS SELF-WINDING

Black-blue. Stainless steel. Diameter (10–4 o’clock): 40 mm. Height: 8.52 mm. Screw-down crown. Water-resistant to 60 m. Steel bracelet. Fold-over clasp. Sapphire crystal case back. Date by hand. Moon phases. Power reserve indication. Small seconds. Moon phases. Gold applied hour markers with luminescent coating.
Date by hand. Moon phases. Power reserve indication. Small seconds. Diameter: 31 mm. Thickness: 3.98 mm. Number of parts: 265. Bridges: 11. Jewels: 29. Power reserve: min. 38 hours – max. 48 hours. Winding rotor: off-center 22K gold minirotor. Balance: Gyromax®. Frequency: 21,600 semi-oscillations per hour (3 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal. Patent: CH 595 653.